I recently posted some examples of how to Traveller Subsector Generator – from the command line. Here’s how to do the same thing for Text Mapper.
`xmllint` allows us to extract text from XML and HTML documents. On a Debian system, it’s part of `libxml2-utils`.
Generate a text file with a 20x20 alpine wilderness map:
`perl text-mapper.pl get /alpine 2>/dev/null | xmllint --html --xpath '//textarea/text()' - > random-alpine-map.txt`
You’ll note that at the very end it contains the seed value.
You can regenerate the same map using this seed:
`perl text-mapper.pl get "/alpine?seed=1499413794" 2>/dev/null | xmllint --html --xpath '//textarea/text()' - > 1499413794.txt`
You can also modify the width and breadth of the map:
`perl text-mapper.pl get "/alpine?width=10&height=5" 2>/dev/null | xmllint --html --xpath '//textarea/text()' - > random-alpine-map.txt`
Let’s define an alias to handle the encoding of the map for us:
`alias encodeURIComponent='perl -pe '\''s/([^a-zA-Z0-9_.!~*()'\''\'\'''\''-])/sprintf("%%%02X",ord($1))/ge'\'`
Make some changes to the text file generated above using a text editor and generate the updated map:
`perl text-mapper.pl get --header 'Content-Type:application/x-www-form-urlencoded' --method POST --content map=$(cat 1499413794.txt|encodeURIComponent) /render 2>/dev/null > 1499413794.svg`
You can use svgexport to generate a PNG image, if you want.
First, install it:
`npm install svgexport -g`
You need to tell it what quality to use when exporting. I use 100% for PNG files; I’d use less for JPG files.
`svgexport 1499413794.svg 1499413794.png 100%`
I guess I have all the tools to create a Twitter bot? ;)
#Maps #Text Mapper